Railway-buffer.



No. 844,092. PATENTED FEB'. 12, 1907'.

W. P. BOSSBRT. y

RAILWAY BUFFER.

APPLICATION I'ILD 00T. 23. 1906.

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PATBNTED FEB. '12, 1907.

No. 844,092. l

W. F..BOSSERT.

RAILWAY BUFFER. APPLIOATION FILED 00123, 1906.

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WILLIAM r. Bossanr,

OF UTIOA, NEW YORK.

HAlLWY-BUFFER..

Specicaton of Letters Patent.

Patented Feb. 12, 1907.

Application tiled October 23, 1906. Serial No. 340.230.

To all whom, i www con/cern:

Be it known that l, TWILLIAM F. Bossnn'r, a citizen of the United States, residing at Utica, in the county ot Oneida and State ot j New York, have invented certain new and useiil Improvements in Railway-Buii`ers g and l do hereby declare the following to be a full, clear, and exact description orp the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and 'tigures of reference marked thereon, which form a part of this speciiieation.

This invention relates to new and useful improvements in railway builers or bumping-posts; and the object in view is to provide a simple and eflicient device of this nature for use at railway-te minals for the purpose of reducing to a minimum the damage to rolling-stock due to the jarring of cars.

The invention consists, further, in the provision oi apparatus wherebyl the initial power of a moving car or cars may be utilized to operate a powerful brake directly connected with the bumping-post, so as to bring the cars to a standstill gradually without sudden jar or jolt, so damagingI to railway property.

The invention consists, further, in the provision of means in connection with a butler or bumping-post whereby cars may be prevented lrom leaving a track wnile being stopped. Heretofore with the buli'ers commonly/"used no provision whatever has been made to gr ard against this contingency, and it is a well-known tact that in the stopping of cars the impact of the moving car against an unyielding bumping-post or butler has a tendency to make the car slide upward and jump the bumping-post, thereby endangeringI lille and property.

The present invention comprises various details of construction and combinations and arrangements of parts, which will be hereinafter fully described and then specifically defined in the appended claims.

l illustrate my invention in the accompanying drawings, in which Figure l is a horizontal longitudinal section through my invention. Fig. 2 is a side elevation. Fig. Sis a sectional view taken on line 3 3 of Fig. l. Fig. 4 is a iront elevation. a detail perspective view of two of the friction clamping-jaws forming a part of the invention.

Fig. 5 is a rear elevation, and Fig. 6 is j Reference now being had to the details of the drawings by letter, A designates a frame made of any suitable metal and having a cyl lindrical aperture A formed therein longituj 'dinally with the track, and B designates a l cap closing one end of said cylindrical opening. C designates a hollow piston or butler mounted to have a longitudinal movement within said aperture or opening in the trame and is previded witn a recessed head O, the recess in which is adapted to receive a coupling-head upon a car, the walls to the recess being tapered in order to guide the couplingt` head therein. D designates a spiral spring inserted within the aperture or opening in said frame and also within the hollow portion oi' said butler or piston, and E designates a second or auxiliary spiral spring also mounted within the hollow portion of the butler or piston, the outer ends of said springs bearing against the head of the buiier or piston, as shown clearly in Fig. l of the drawings, 'while their inner ends are designed to bear yieldingiy against the cap R. F and F are lrietion-ciaws mounted in a transverse opening at right angles to the opening in which said piston or butler is adapted to have a play, and G G designate two springs, the inner ends of which are adapted to bear against the outer faces ci' said jaws F and F, respectively, while their outer ends bear against the cam-actuated plates H, one mounted adjacent to each end of the transverse opening through the casing. Auxiliary spiral springs I also bear between the clamping-jaws F and F and said plates H, thereby holding the jaws yieldingly against the hollow shank portion ci said butler or piston. The adjacent edges cf said jaws are provided with. serrations J, (shown clearly in Fig. 6,) which intermesh with one another and adapted to guide the jaws to and 'from each other. Projecting from the opposite edges of the casing or frame A are the arms O, carrying the 'lulcrum-pins O', upon which the cams P are eccent'rically mounted. It will be noted that the outer tace of each of said plates H is concaved and is adapted to receive the curved edge of one of said cam members, it also being noted that the pivotal pins O are mounted at one side of the longitudinal center of the transverse opening in which said friction-jaws are mounted for the purpose of allowing the springs G and l. to react against the cams P and links Q, which connect the cams with the fulcrum-pins Q', carried by IIO the head of said buffer or piston, thereby assisting the springs D and E to return the former to their original positions after the stoppage of cars and removal therefrom, adapted to adjust the apparatus for the next operation.

R R designate pivot-pins mounted upon the frame A, upon the forward end thereof, and to which are pivotally connected .the stay-rods R, which in turn are pivotally connected to the pins S upon the cross-rail S', and the latter are held to the track by means `of nuts and bolts S4. Said crosspiece S is provided with apertures S5 near its center, through which the arms of the U- shaped rod T are adapted to pass, which U- shaped rod also extends through openings in the tie and passes underneath an :tf-beam U.

Nuts T 2, mounted upon the threaded ends of said rod T, serve to securely hold the crosspiece and tie to said reinforcing -beam, thereby affording secure anchorage for fastening the bumping-post or buffer direct to the track without the need of excavations for foundations.

The frame A isalso provided on its under side with means to receive an -beam L, (shown in Fig. 2 of the drawings) the lower end of which beam L bears against a plate L, fastened to the tie, 'while its upper end oontacts with the under surface of the frame at the yproper height between the surface of the track and coupler.

To the rear of the frame are socket members A3, adapted to receive the corresponding ends of the braces A4, which are fastened to the track-rails by means of the specially-designed blocks A5, which partially embrace the rails and are fastened to the same by means of bolts. In order to provide against the spreading of the rails by heavy pressure or jar, the two blocks A are connected together by a heavy bar A6. (Shown clearly in Fig. 5 of the drawings.)

In operation it will be noted that cars approaching and coming in contact with the recessed heads of the buffers or pistons will first have to overcome the resistance of the powerful springs inserted within the frame in alinement with the buffer or piston, and afterward the immense friction between the jaws F and F, which are caused to be thrown against the circumference of the piston or buffer by the action of the cam forcing the plates H against the coiled springs G and I, which in turn bear against said jaws as the impact of a coupler comes in contact with the pistonhead. By this arrangement of apparatus it is apparent that the initial power or momentum of moving cars is greatly dissipated by the tremendous friction through the cams P upon the springs, which in turn bear against the jaws, causing the same to bind against the circumference of the piston or buffer. It will also be noted that the greater the impact against the buffer-head the greater will be the friction between the jaws and the circumference of the hollow portion of the buffer orpiston, thereby avoiding all sudden jar to the appa ratus and also to the cars and avoiding a common tendency for lifting cars from the track as they come against an unyielding contact-surface.

What I claim Aisl. A railway-buffer comprising a movable, spring-actuated hollow piston provided with a head, clamping-jaws adapted to contact with the circumference of the piston, and means actuated by the head of the piston to cause said clamping-jaws to frictionally engage the piston, as set forth.

2. A railway-buffer comprising a frame, a piston mounted in an opening in vsaid frame, jaws having a movement at right angles to the length of said piston and adapted to frictionally contact with the outer circumference thereof, cams having pivotal connection with a head or shoulder of said piston, and springs interposed. between said cams and jaws, as set forth.

3. A railway-bu'ler comprising a frame, a hollow piston mounted in an opening therein, friction-jaws mounted in an opening at right angles to the opening in which said piston is mounted, springs interposed between the outer faces of said jaws and the head of said piston, cams pivotally mounted upon the frame, springs interposed between said cams and said jaws, and link connections between said cams and head of the piston, as set forth.

4. A railway-buffer comprising a frame, a hollow piston mounted in an opening therein, friction-jaws mounted in an opening at right angles to the opening in which said piston is mounted, springs interposed between the outer faces of said jaws and the head of said piston, cams pivotally mounted upon the frame, plates mounted in openings at right angles to the opening in which said piston is mounted and against which said cams are adapted to frictionally contact, springs intere posed between said plates and said aws, and link connections between said cams and the head of said piston, as set forth.

5. A railway-buffer comprising a frame having openings at right angles to each other formed therein, a hollow piston mounted in one of said openings and provided with a head, one face of which is recessed and adapted to receive the impact of a couple-rhead, interlocking aws mounted in the other opening and adapted to contact with the circumference of said hollow piston, cams mounted upon the frame, plates mounted in the openings in which said jaws have play, springs interposed between said jaws and cams, links pivotally connecting said cams and the head of said'piston, and springs IOO IIS

interposed between the jaws and the head of said piston, as set forth.

6. A railway-buffer comprising a frame having openings at right angles to each other formed therein, a hollow piston mounted in one of said openings and provided with a head, one face of which is recessed and adapted to receive the impact of a couplerhead, interlocking jaws mounted in the other opening and adapted to contact with the circumference of said hollow piston, cams mounted upon the frame, plates mounted in the openings in which said jaws have play, springs interposed between said jaws and cams, links pivotally connecting said cams and the head of said piston, a cosure to one end of the opening in which said piston is mounted, springs interposed between said closure and piston-head and springs interposed between the opposite sides of the jaws and the piston-head, as set forth.

7. A railway-buffer comprising a frame having openings at right angles to each other formed therein, a piston mounted in one of said openings and provided with a head with a recessed face, friction-jaws mounted.

in the opening at right angles to the opening in which said piston is mounted, plates mounted in the opening in which said jaws have play, springs interposed between said plates and jaws and between the latter and the head of the piston, cams, pivot-pins mounted at one side of the center of the opening in which said jaws are mounted and upon which said cams are pivotally mounted, the latter being adapted to bear against vthe concaved surfaces of said plates, and

links connecting said cams with the head of the piston, as set forth. 4

8. A railway-buffer comprising a casing, spring-pressed piston mounted therein, clamping-jaws, means for throwing said j alws into contact with the circumference of the piston when the same is mpved longitudinally, brace-bars pivotally connected at corresponding ends to said frame and connected to the rails of a railway at their opposite ends, and a cross-piece connecting said brace-bars, as set forth.

9. A railway-buffer comprising av casing, a spring-messed piston mounted therein,

piece pivoted to the outer ends of said bracebars, means for fastening said cross-piece to the rails of a railway, a U-shaped rod passing through apertures in said cross-piece, an l-beam underneath the ties of a railway and underneath which said U-shaped rod passes, and nuts mounted upon the threaded end of the latter and adapted to -bear against said cross-piece, as set forth.

l0. A railway-buffer comprising a casing, a spring-pressed piston mounted therein, clamping-jaws, means for throwing said aws into contact with the circumference of the piston when the same is moved longitudinally, brace-bars pivotally connected at corresponding ends to said frame, a crosspiece pivoted to the outer ends of said bracebars, means for fastening said cross-piece to the rails of a railway, U-shaped rod passing through apertures in said cross-piece, an li-beam underneath the ties of a railway and underneath which said U-shaped rod passes, nuts mounted upon. the threaded end of the latter and adapted to bear against said crosspiece, bars engaging socket members in said frame at their inner ends, and blocks fastened to the railway-rail to which the outer ends of said bars engaging the sockets of the frame, are held, as set forth.

11. A railway-buffer comprising a casing, a spring-pressed piston mounted therein, damning-jaws, means for throwing said jaws into contact with the circumference of the piston when the same is moved longitudinally, brace-bars pivotally connected at corresponding ends to said frame, a crosspiece pivoted to the outer ends of said bracebturs, means for fastening said cross-piece to the rails of a railway, a U-shaped rod passing through apertures in said cross-piece, an f-bcam underneath the ties of a railway and underneath which said U-shaped rod passes, nuts mounted upon the threaded end of the latter and adapted to bear against said crosspiece, bars engaging socket members in said frame at their inner ends', blocks fastened to the railway-rail to which the outer ends of said bars engaging the sockets of the frame, are held, and an li-beam supporting said frame, as set forth.

In testimony whereof I hereunto affix my clamping-Jaws, means for throwing said i signature in the presence of two witnesses.

into contact with the circumference of the piston when the same is moved longitudinally, brace-bars pivotally connected at corresponding ends to'said frame, a cross- WILLIAM F. BOSSERT. /Vitnesses:

DAYTON ROTH, CLARENCE C. Born.

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